Tests

chore(op): backport isthmus operator fee (#2059) #4946

Job	Run time
check	18s
check serde	22s
check std	23s
check no_std	22s
check no_std kzg-rs	26s
clippy	1m 23s
docs	1m 11s
test stable --no-default-features	33s
fmt	7s
test stable	25s
test stable --all-features	1m 17s
test beta --no-default-features	1m 45s
TyposCheck	5s
test beta	1m 49s
test beta --all-features	1m 53s
test nightly --no-default-features	1m 43s
test nightly	1m 47s
test nightly --all-features	1m 49s
	17m 38s

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